scholarly journals Flow and Heat Transfer Characteristics on Circular Impinging Jet Added Annular Suction Flow. The Case Where Impinging Wall is Placed in Potential Core Region of Free Jet.

1999 ◽  
Vol 19 (74) ◽  
pp. 230-236
Author(s):  
Minoru FUKUHARA ◽  
Hirokazu SONODA ◽  
Tsutomu NOZAKI ◽  
Hiroki NOGUCHI ◽  
Hidenari YAMASHITA ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Impinging Jet ◽  
Core Region ◽  
Heat Transfer Characteristics ◽  
Potential Core ◽  
Free Jet ◽  
Transfer Characteristics ◽  
Flow And Heat Transfer ◽  
Suction Flow

0504 Flow and heat transfer characteristics of rotating impinging jet using DNS

2014 ◽  
Vol 2014 (0) ◽  
pp. _0504-1_-_0504-4_
Author(s):  
Naoki KOIKE ◽  
Koichi TSUJIMOTO ◽  
Toshihiko SHAKOUCHI ◽  
Toshitake ANDO
Keyword(s):  
Heat Transfer ◽  
Impinging Jet ◽  
Heat Transfer Characteristics ◽  
Transfer Characteristics ◽  
Flow And Heat Transfer

Heat Transfer Characteristics of an Inclined Impinging Jet on a Curved Surface in Crossflow

2014 ◽  
Vol 136 (8) ◽  
Author(s):  
X. L. Wang ◽  
H. B. Yan ◽  
T. J. Lu ◽  
S. J. Song ◽  
T. Kim
Keyword(s):  
Heat Transfer ◽  
Reynolds Number ◽  
Flat Plate ◽  
Local Heat Transfer ◽  
Impinging Jet ◽  
Local Heat ◽  
Curved Surface ◽  
Heat Transfer Characteristics ◽  
Potential Core ◽  
Transfer Characteristics

This study reports on heat transfer characteristics on a curved surface subject to an inclined circular impinging jet whose impinging angle varies from a normal position θ = 0 deg to θ = 45 deg at a fixed jet Reynolds number of Rej = 20,000. Three curved surfaces having a diameter ratio (D/Dj) of 5.0, 10.0, and infinity (i.e., a flat plate) were selected, each positioned systematically inside and outside the potential core of jet flow where Dj is the circular jet diameter. Present results clarify similar and dissimilar local heat transfer characteristics on a target surface due to the convexity. The role of the potential core is identified to cause the transitional response of the stagnation heat transfer to the inclination of the circular jet. The inclination and convexity are demonstrated to thicken the boundary layer, reducing the local heat transfer (second peaks) as opposed to the enhanced local heat transfer on a flat plate resulting from the increased local Reynolds number.

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